Quote:
Originally Posted by some_other_dave
There are two different kinds of Platinum plugs available from Bosch. The really expensive ones that were made for the early 911s (which before that fouled out or eroded plugs at a horrifying rate!), and the cheapie ones that you can get everywhere.
The latter are pure crap, IMHO. The QC is spotty at best; I know more than a couple of people who have had the speck of platinum fall right out of the plug into the combustion chamber! They also foul quickly on older cars that tend to run rich. Their +4 and +2 plugs are the same crappy plugs with extra outer electrodes.
Bosch's other plugs (copper, silver, et al) are pretty good, but the cheap Platinums should be avoided.
-soD
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I run cheapo platinums.. installed in 2005. Now on its second sube approx 65k miles, on a carbed 1987... which just read 22 inches of mercury rock solid (ironically, less than an hour ago)
if the plugs are failing, target everything. plugs are just the end...
I give them 2 thumbs up
rich conditions, way way freaksihly below zero (-18f and beyond) to days like today, with a gulf slick burning haze and a 80F temp reading not matching the repulsive slop it feels like.
what happened to this thread, its like a chunk disappeared.
